But success breeds expectation, and expectation carries its own cruel weight. Arsenal tore Villa apart in a 4-1 win in late December and victories have been hard to come by in the new year – they have only won three of their last nine league games. Liverpool, Manchester United and Chelsea are still below them in the table but the gap is narrowing. With games against United and Chelsea coming in March, the top-three spot Villa have occupied since they beat Wolves in late November suddenly looks in jeopardy. So does their place in the Champions League next season.
Despite the headline, this isn't really a story about superconductivity—at least not the superconductivity that people care about, the stuff that doesn't require exotic refrigeration to work. Instead, it's a story about how superconductivity can be used as a test of some of the weirder consequences of quantum mechanics, one that involves non-existent particles of light that still act as if they exist.
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// Consume as text
想来，那些惯常的山川风物、生产生活，之所以新风扑面、新气逼人，根源在于人的心气变了。
但当你熬夜写代码，只为看到项目运行时的火焰，是什么让你兴奋？